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Finding the Fourth Proportional to 290,608.68, 401,043.60 and 175,885.86

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Solution

The fourth proportional to 290,608.68, 401,043.60 and 175,885.86 is: 242,724.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,608.68 : 401,043.60 = 175,885.86 : x
  2. Step 2: Convert to fraction form
    290,608.68/401,043.60 = 175,885.86/x
  3. Step 3: Cross multiply
    290,608.68x = 401,043.60 × 175,885.86
  4. Step 4: Simplify right side
    290,608.68x = 70,537,898,483.50
  5. Step 5: Solve for x
    x = 70,537,898,483.50/290,608.68
  6. Step 6: Final answer
    x = 242,724.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.